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Typical weather at station CHICAGO MIDWAY INTL ARPT on September 27

High Temperatures

On September 27 in CHICAGO MIDWAY INTL ARPT the average high temperature is 71.8 °F (22.1 °C). The lowest recored high temperature was 51.1 °F (10.6 °C) in 1984 and the highest recored high temperature was 90.0 °F (32.2 °C) in 1971. The high temperature is usually* between 66.0 °F (18.9 °C) and 77.6 °F (25.3 °C). About a quarter of the time, the high temperature is less than 66.0 °F (18.9 °C), and another quarter of the time, the high temperature is greater than and 77.6 °F (25.3 °C). About 95% of the time, the high temperature has been between 54.9 °F (12.7 °C) and 88.6 °F (31.5 °C).

Low Temperatures

On September 27 in CHICAGO MIDWAY INTL ARPT the average low temperature is 53.7 °F (12.1 °C). The lowest recored low temperature was 39.0 °F (3.9 °C) in 1991 and the lowest recored low temperature was 69.8 °F (21.0 °C) in 1998. The low temperature is usually* between 48.8 °F (9.3 °C) and 58.6 °F (14.8 °C). About a quarter of the time, the low temperature is less than 48.8 °F (9.3 °C), and another quarter of the time, the low temperature is greater than and 58.6 °F (14.8 °C). About 95% of the time, the low temperature has been between 39.5 °F (4.2 °C) and 67.9 °F (20.0 °C).

Frost

On September 27 in CHICAGO MIDWAY INTL ARPT expect the temperatures to drop below freezing for a risk of frost about 0.1% of the time.

Usually* in this context means around 50% of the time, assuming a normal distribution of values.

Data Source(s)

The data used to compute the average high/low temperatures for this location were taken from the following stations: